Preparation
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Cobalt(II) fluoride

Preparation
Product Name
Cobalt(II) fluoride
CAS No.
10026-17-2
Chemical Name
Cobalt(II) fluoride
Synonyms
difluorocobalt;COBALT FLUORIDE;Cobalt(Ⅱ)fluorde;Cobalt(Ⅱ)fluoride;COBALT DIFLUORIDE;COBALTOUS FLUORIDE;COBALT(II) FLUORIDE;Two cobalt fluoride;COBALT FLUORIDE PINK;cobaltfluoride(cof2)
CBNumber
CB7681660
Molecular Formula
CoF2
Formula Weight
96.93
MOL File
10026-17-2.mol
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Cobalt(II) fluoride Property

Melting point:
1200 °C
Boiling point:
1400 °C
Density 
4.46 g/mL at 25 °C
solubility 
soluble in acid solutions
form 
powder
color 
Pink
Specific Gravity
4.46
Water Solubility 
Soluble in water, alcohol and acetone.
Crystal Structure
Rutile type
Sensitive 
Hygroscopic
Merck 
14,2440
crystal system
square
Space group
P42/mnm
Lattice constant
a/nmb/nmc/nmα/oβ/oγ/oV/nm3
0.46950.46950.31829090900.0701
Exposure limits
ACGIH: TWA 0.02 mg/m3; TWA 2.5 mg/m3
NIOSH: IDLH 250 mg/m3; TWA 2.5 mg/m3
Stability:
hygroscopic
CAS DataBase Reference
10026-17-2(CAS DataBase Reference)
EPA Substance Registry System
Cobalt fluoride (CoF2) (10026-17-2)
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Safety

Hazard Codes 
T,C
Risk Statements 
25-34
Safety Statements 
26-36/37/39-45-50A-28A
RIDADR 
UN 2923 8/PG 3
WGK Germany 
3
RTECS 
GG0770000
21
Hazard Note 
Toxic
TSCA 
Yes
HazardClass 
6.1
PackingGroup 
III
HS Code 
28261990
Hazardous Substances Data
10026-17-2(Hazardous Substances Data)
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H301Toxic if swalloed

H314Causes severe skin burns and eye damage

Precautionary statements

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P270Do not eat, drink or smoke when using this product.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
236128
Product name
Cobalt(II) fluoride
Purity
powder
Packaging
25g
Price
$112
Updated
2023/06/20
Alfa Aesar
Product number
013074
Product name
Cobalt(II) fluoride, anhydrous, 98%
Packaging
25g
Price
$72.65
Updated
2024/03/01
Alfa Aesar
Product number
013074
Product name
Cobalt(II) fluoride, anhydrous, 98%
Packaging
100g
Price
$225
Updated
2023/06/20
Strem Chemicals
Product number
93-2738
Product name
Cobalt(II) fluoride, anhydrous, 99%
Packaging
10g
Price
$46
Updated
2024/03/01
Strem Chemicals
Product number
93-2738
Product name
Cobalt(II) fluoride, anhydrous, 99%
Packaging
50g
Price
$164
Updated
2024/03/01
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Cobalt(II) fluoride Chemical Properties,Usage,Production

Preparation

Cobalt(II) fluoride is prepared by heating anhydrous cobalt(II) chloride or oxide in a stream of hydrogen fluoride:
CoCl2 + 2HF → CoF2 + 2HCl
CoO + 2HF → CoF2 + 2H2O
Also, cobalt(II) fluoride can be prepared as a tetrahydrate, CoF2•4H2O by dissolving cobalt(II) hydroxide in hydrofluoric acid. The tetrahydrate is then dehydrated to anhydrous fluoride. Elemental fluorine combines with cobalt at 450°C forming mixtures of cobalt(II)–and cobalt(III) fluorides.

Chemical Properties

Rose-red crystals or powder. Soluble in cold water and hydrofluoric acid. Decomposes in hot water. Ammine complexes can be prepared from the hydrate.

Physical properties

Red tetragonal crystal; density 4.46 g/cm3; melts at 1,127°C; vaporizes around 1,400°C; sparingly soluble in water; soluble in warm mineral acids; decomposes in boiling water. Tetrahydrate is red orthogonal crystal; density 2.22 g/cm3; decomposes on heating; soluble in water; di- and trihydrates are soluble in water.

Uses

Cobalt(II) fluoride can be used as a catalyst to alloy metals. It is also used for optical deposition, of which it tremendously improves optical quality. The compound may be used in dental care.

Uses

Catalyst for organic reactions.

General Description

Violet to red solid. Sinks and mixes slowly with water.

Reactivity Profile

Cobalt(II) fluoride is a toxic, light brown crystalline material, when exposed to water Cobalt(II) fluoride forms highly corrosive hydrofluoric acid. When heated to decomposition Cobalt(II) fluoride emits toxic fumes of metallic cobalt and fluorides [Lewis, 3rd ed., 1993, p. 344].

Hazard

Highly toxic.

Health Hazard

INHALATION: Inhalation of dust may cause pulmonary symptoms. EYES: Irritation. SKIN: Skin rashes, dermatitis. INGESTION: Nausea and vomiting caused by local irritation.
LD50 oral (rat): 150 mg/kg

Safety Profile

Poison by ingestion. When heated to decomposition it emits toxic fumes of Co and F-.

Cobalt(II) fluoride Preparation Products And Raw materials

Raw materials

Preparation Products

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Cobalt(II) fluoride Suppliers

ABSCO Limited
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Email
enquiries@absco-limited.com
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United Kingdom
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Apollo Scientific Ltd
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ales@apo
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United Kingdom
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Apollo Scientific Ltd.
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Whyte Chemicals
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sales@whytechemicals.co.uk
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United Kingdom
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MOLEKULA Ltd.
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kevinbanks@molekula.com
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United Kingdom
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Fluorochem Ltd
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ABSCO Materials
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ABSCO Ltd
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enquiries@abscomaterials.com
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United Kingdom
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Fluorochem Ltd.
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enquiries@fluorochem.co.uk
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VWR International
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Email
solutions@vwr.com
Country
United Kingdom
ProdList
6548
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View Lastest Price from Cobalt(II) fluoride manufacturers

Career Henan Chemical Co
Product
Cobalt(II) fluoride 10026-17-2
Price
US $1.00/KG
Min. Order
1g
Purity
98%
Supply Ability
200kgs
Release date
2020-01-09

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